package day04;

public class ForDemo {
    public static void main(String[] args) {
        /*for(int num=1;num<=9;num++){
            System.out.println(num+"*9="+num*9);
        }
        for(int num=1;num<=9;num+=2){
            System.out.println(num+"*9="+num*9);
        }
        for(int num=9;num>=1;num++){
            System.out.println(num+"*9="+num*9);
        }
        for(int times=0;times<5;times++){
            System.out.println("行动是成功的阶梯");
        }
        System.out.println("继续执行...");*/
        int sum=0;
        for(int i=1;i<=100;i++){
            sum += i;
        }
        System.out.println("sum="+sum);







    }
}
